@article{oai:repo.qst.go.jp:00042972,
 author = {Satou, Yukio and 佐藤 幸夫},
 journal = {Review of Scientific Instruments},
 month = {Feb},
 pages = {720--722},
 title = {Effects of Ion-Pumping in a Pulsed Penning Source},
 volume = {73},
 year = {2002}
}